Merge branch 'task/JAL-3234_211_codesigning' into develop

[jalview.git] / getdown / src / getdown / core / src / main / java / com / threerings / getdown / util / Color.java

diff --git a/getdown/src/getdown/core/src/main/java/com/threerings/getdown/util/Color.java b/getdown/src/getdown/core/src/main/java/com/threerings/getdown/util/Color.java
new file mode 100644 (file)
index 0000000..047cead
--- /dev/null
+++ b/getdown/src/getdown/core/src/main/java/com/threerings/getdown/util/Color.java
@@ -0,0 +1,27 @@
+//
+// Getdown - application installer, patcher and launcher
+// Copyright (C) 2004-2018 Getdown authors
+// https://github.com/threerings/getdown/blob/master/LICENSE
+
+package com.threerings.getdown.util;
+
+/**
+ * Utilities for handling ARGB colors.
+ */
+public class Color
+{
+    public final static int CLEAR = 0x00000000;
+    public final static int WHITE = 0xFFFFFFFF;
+    public final static int BLACK = 0xFF000000;
+
+    public static float brightness (int argb) {
+        // TODO: we're ignoring alpha here...
+        int red = (argb >> 16) & 0xFF;
+        int green = (argb >> 8) & 0xFF;
+        int blue = (argb >> 0) & 0xFF;
+        int max = Math.max(Math.max(red, green), blue);
+        return ((float) max) / 255.0f;
+    }
+
+    private Color () {}
+}